NYC-WTC_000212824

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters); 1920 Lab Group #: 8025 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 01 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRU) ID: Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 6/9/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID Of Structure Nor V EDS No (Nonadb F B C M >=05 M >=5p Chrys Amphibole Nonasb Ambig/ND No^ Coord <514 Elements)

Struct = > 0.5(4 > 5:1 Aspect Ratio Grid acceptance; a/= Positive diffraction pattern (iropertles conforming to <50% undissolved fitter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m '/= EDS spectrum conforming to laboratory holes or opaque areas identifiaition criteria observed Chrysotile Famphiboles Amphibole F = Single Fiber I Amosite B = Bundle (<3 fibers <1 fiber tiianneter apart I Crocidolite Ambiguous C = Cluster f>3 Intersections) i Anthophyllite Non-Asbestos Tremolite M = Malrix Non-Identified Actinolite NSD = fJo Structures Detected

CITY_21MC100_002852395

NYC-WTC_000212824